To masturbate to something you found hot the other day.
Matt: Dude, i just saw this hot chick the other day!
Travis: Did you yesterbate to her?
Matt: Hell yeah!
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A verb that describes the act of masterbating on the day previous to the current date.
Nic: Did you yesterbate?

Dylan: Nah, but I did it this morning.

Nic: High five!
by Nic-To-The-K November 9, 2011
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Any open beer that has been sitting out at least overnight, and then still gets drank. usually by someone who wakes up still drunk from the night before, or a seasoned drinker after the beer runs out.
"where did you find that beer, I thot we were out?"
"we are, its a yesterbeer..."

"Whatta party last night, I really need something to wet my whistle! What is there to drink?"
" nothing left, just grab a yesterbeer!"
by Master_Sven March 24, 2010
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Shorthand for a story beginning with "yesterday i masterbated..."
Yesterbate and it went all over my walls. Yesterbate and then my dog walked in and one thing led to another.
by Detective Mittens April 19, 2009
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Masturbating someone else yesterday/the day before.

Also can be used as yesterbated and yesterbate
ex:
Dimond-"damn, my arm hurts from yesterbating that trucker"
Pimp daddy- "Well, bitch, you gotta 'nother comin' a quarter till. Here's some vicodin"
Dimond- "Daddy, you treat me so good."

ex:
Jim-"I wish I had someone to yesterbate me too."
Tommy-"Don't worry the prom is coming up soon!"
by La8erB8er December 18, 2013
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To excessively whine about what could have been done in the past.
"Man, I never should have worn crocs in my dick pic," yesterbated Bret during halftime of his pickup football game.
by fuzzysummer June 13, 2014
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